Ex3 test_les does not work over USB on Rpi3

When the DWM1001-dev module is connected to Rpi3 over the 2x13 pin headers, the example (test_les) works just fine and returns location data

However, while connected over USB, all tests fail. Note that we are able to connect minicom over USB and retrieve output of si and les and so on.

Attached is the log.txt for the run over USB. Are we missing something ?log.txt (4.8 KB)